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EP1270541A4 - Method of separating and recovering aromatic carbonate and production process - Google Patents

Method of separating and recovering aromatic carbonate and production process

Info

Publication number
EP1270541A4
EP1270541A4 EP01919774A EP01919774A EP1270541A4 EP 1270541 A4 EP1270541 A4 EP 1270541A4 EP 01919774 A EP01919774 A EP 01919774A EP 01919774 A EP01919774 A EP 01919774A EP 1270541 A4 EP1270541 A4 EP 1270541A4
Authority
EP
European Patent Office
Prior art keywords
aromatic carbonate
separating
catalyst
production process
recovering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01919774A
Other languages
German (de)
French (fr)
Other versions
EP1270541A1 (en
Inventor
Kenji Ohashi
Hirotaka Suzuki
Takeshi Muraoka
Eishin Yoshisato
Ryouichi Nagashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2000106257A external-priority patent/JP2001288149A/en
Priority claimed from JP2000106258A external-priority patent/JP2001288148A/en
Application filed by Teijin Ltd filed Critical Teijin Ltd
Publication of EP1270541A1 publication Critical patent/EP1270541A1/en
Publication of EP1270541A4 publication Critical patent/EP1270541A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C68/00—Preparation of esters of carbonic or haloformic acids
    • C07C68/08—Purification; Separation; Stabilisation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method which comprises adding a solvent having a solubility parameter of 7 to 10 to a solution of an aromatic hydroxy compound containing an aromatic carbonate to thereby precipitate the aromatic carbonate as crystals and separating and recovering the precipitate. The method is an advantageous one by which a high-purity aromatic carbonate can be separated as a solid from a reaction mixture solution obtained by reacting an aromatic hydroxy compound with carbon monoxide and molecular oxygen in the presence of a catalyst. Also provided are a method of effectively recovering a catalyst and a method of recycling the catalyst.
EP01919774A 2000-04-07 2001-04-04 Method of separating and recovering aromatic carbonate and production process Withdrawn EP1270541A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2000106258 2000-04-07
JP2000106257A JP2001288149A (en) 2000-04-07 2000-04-07 Method for separating and recovering diaryl carbonate
JP2000106257 2000-04-07
JP2000106258A JP2001288148A (en) 2000-04-07 2000-04-07 Method for producing aromatic carbonate
PCT/JP2001/002925 WO2001077060A1 (en) 2000-04-07 2001-04-04 Method of separating and recovering aromatic carbonate and production process

Publications (2)

Publication Number Publication Date
EP1270541A1 EP1270541A1 (en) 2003-01-02
EP1270541A4 true EP1270541A4 (en) 2005-03-09

Family

ID=26589666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01919774A Withdrawn EP1270541A4 (en) 2000-04-07 2001-04-04 Method of separating and recovering aromatic carbonate and production process

Country Status (7)

Country Link
US (1) US20030162989A1 (en)
EP (1) EP1270541A4 (en)
KR (1) KR20020084251A (en)
CN (1) CN1422242A (en)
AU (1) AU2001246830A1 (en)
TW (1) TW524802B (en)
WO (1) WO2001077060A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003035592A1 (en) * 2001-10-26 2003-05-01 Teijin Limited Method of depolymerizing aromatic polycarbonate
MY141753A (en) * 2003-09-15 2010-06-30 Shell Int Research Method for producing polycarbonate
KR101120054B1 (en) * 2008-07-30 2012-03-23 아주대학교산학협력단 Novel coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst
KR101230938B1 (en) * 2010-11-15 2013-02-15 비아이 이엠티 주식회사 Method for purifying polycarbonate and polycarbonate prepared by using the method
CN103183617A (en) * 2011-12-29 2013-07-03 中国科学院成都有机化学有限公司 Method for purifying high-purity diaryl carbonate
CN105312053B (en) * 2014-07-29 2018-09-11 中国石化扬子石油化工有限公司 Support type Pt-Pd-Mn-Ce catalyst, preparation method and the application in processing absorption PX in sulfide clay powder recycling technique
WO2016157218A1 (en) * 2015-03-27 2016-10-06 Council Of Scientific & Industrial Research Process for recovery and regeneration of deactivated catalysts used in dialkyl carbonate synthesis
KR102014585B1 (en) * 2016-12-30 2019-08-26 롯데첨단소재(주) Method for preparing aromatic dicarbonate
CN113577814B (en) * 2021-08-16 2022-10-18 四川中蓝国塑新材料科技有限公司 Diphenyl carbonate recovery device and method for industrial production of polycarbonate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5965472A (en) * 1996-04-09 1999-10-12 Bayer Ag Recovery of catalyst systems from diaryl carbonate-containing reaction solutions by suspension crystallization

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS157363B1 (en) * 1972-06-28 1974-09-16
US5142086A (en) * 1991-04-01 1992-08-25 General Electric Company Method for making organic carbonates
JPH05262872A (en) * 1992-03-17 1993-10-12 Idemitsu Petrochem Co Ltd Production of polycarbonate
DE4220412C2 (en) * 1992-06-22 1995-12-07 Bayer Ag Process for splitting polycarbonates into bisphenols and diaryl carbonates
US5239106A (en) * 1992-08-17 1993-08-24 General Electric Company Method of recovering and purifying diphenylcarbonate from phenolic solutions thereof
US5312955A (en) * 1992-08-17 1994-05-17 General Electric Company Method for making aromatic organic carbonates
DE19523390A1 (en) * 1995-06-23 1997-01-09 Bayer Ag Process for the preparation of diaryl carbonates
US5981788A (en) * 1997-11-03 1999-11-09 General Electric Company Method for recovering and recycling catalyst constituents
EP1112997B1 (en) * 1999-12-28 2009-05-13 Mitsubishi Chemical Corporation Process for producing diaryl carbonate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5965472A (en) * 1996-04-09 1999-10-12 Bayer Ag Recovery of catalyst systems from diaryl carbonate-containing reaction solutions by suspension crystallization

Also Published As

Publication number Publication date
WO2001077060A1 (en) 2001-10-18
AU2001246830A1 (en) 2001-10-23
EP1270541A1 (en) 2003-01-02
US20030162989A1 (en) 2003-08-28
CN1422242A (en) 2003-06-04
KR20020084251A (en) 2002-11-04
TW524802B (en) 2003-03-21

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Legal Events

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: OHASHI, KENJI,C/O TEIJIN LTD

Inventor name: MURAOKA, TAKESHI,C/O TEIJIN LTD

Inventor name: YOSHISATO, EISHIN

Inventor name: NAGASHIMA, RYOUICHI,C/O TEIJIN LTD

Inventor name: SUZUKI, HIROTAKA,C/O TEIJIN LTD

A4 Supplementary search report drawn up and despatched

Effective date: 20050124

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